Device for detecting burrs on surface of aluminum die-casting product
By designing an automated surface burr detection device for aluminum die-casting products, and using DC power and lighting signals to achieve automated detection, the problem of difficulty in accurately detecting burrs in the prior art is solved, and the detection efficiency and reliability of product quality are improved.
Patent Information
- Application Number
- CN202421495608.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The prior art is difficult to accurately detect burrs with a surface of aluminum die-casting products greater than 0.15mm, resulting in frequent product quality problems, and traditional manual inspections have artificial errors and inefficiency.
An automated detection device is designed, including flat conductors, positioning pins, insulated base plates, burr detection mechanisms and in-place detection mechanisms. Automatic detection is achieved through DC power supply and lighting signals (red and green lights) to ensure accurate identification of burr sizes.
The device can accurately identify burrs greater than 0.15mm, reduce human error, improve detection efficiency, reduce production costs, and ensure stable and reliable product quality.
Smart Images
Figure CN223022228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum die-casting product detection, and particularly relates to a device for detecting burrs on the surface of aluminum die-casting products. Background Technique
[0002] Installing the substrate on a specific surface of the aluminum die-casting product is a crucial step. This surface must be ensured to be smooth without any problems, especially to avoid the existence of burrs, because these burrs may seriously interfere with the normal installation and function of the substrate. According to the structural dimension requirements of the product design, usually four bosses are provided on the product surface, and these bosses are in contact with the substrate to achieve precise positioning. Since the designed clearance value between the substrate and the product surface is extremely small, usually less than 0.2 mm, extremely high requirements are put forward for the size control of burrs.
[0003] To ensure the normal operation of the substrate and prevent the risk of open circuit or short circuit caused by over-sized burrs, it is strictly stipulated that the size of burrs must be strictly controlled below 0.15 mm. However, for die-casting products, it is a very challenging task to completely avoid burrs larger than 0.15 mm.
[0004] What is more troublesome is that even for extremely small burrs, it is very difficult to directly and accurately judge their size by the naked eye. Traditional detection methods rely on the comprehensive observation and manual trimming by operators, but this method is inevitably prone to omissions, resulting in frequent product quality problems and even claim incidents. Therefore, we need to seek more accurate and efficient detection methods to ensure that the burrs on the surface of aluminum die-casting products are strictly controlled, so as to ensure the smooth progress of substrate installation and the stable and reliable product quality. Content of the Utility Model
[0005] The purpose of the utility model is to provide a device for detecting burrs on the surface of aluminum die-casting products, which can accurately detect burrs larger than 0.15 mm on the surface of aluminum die-casting products, adopts an automatic detection method, avoids the influence of human factors (such as fatigue, negligence, etc.) on the detection results, and reduces the risks of missed detection and misdetection.
[0006] To achieve the above purpose, the present application proposes a device for detecting burrs on the surface of aluminum die-casting products, including:
[0007] A flat conductor, which is used to conduct the circuit when the burrs on the product to be measured are larger than 0.15 mm;
[0008] A positioning pin, which is used to support the product to be measured and make a gap exist between the product to be measured and the flat conductor;
[0009] An insulating base plate, which is located under the flat conductor and is used to isolate the circuit;
[0010] A burr detection mechanism for detecting whether there are burrs larger than 0.15 mm on the product under test;
[0011] A positioning detection mechanism, which is built in the flat conductor and the insulating base plate as a conduction switch of the burr detection mechanism, for detecting whether the product under test is placed in place.
[0012] Furthermore, the positioning detection mechanism includes:
[0013] A contact PIN needle for detecting whether the product under test is in place;
[0014] A loop PIN needle, when connected to the contact PIN needle, the conduction switch is in the closed state, and when separated from the contact PIN needle, the conduction switch is in the open state;
[0015] A loop spring, sleeved on the loop PIN needle and located at the bottom of the contact PIN needle; used to realize the connection and separation between the contact PIN needle and the loop PIN needle;
[0016] An adjusting spring, located at the bottom of the loop PIN needle, for providing support and reset for the contact PIN needle.
[0017] Furthermore, the burr detection mechanism includes:
[0018] A spring needle, in contact with the product under test;
[0019] A DC power supply, respectively connected to the spring needle and the conduction switch;
[0020] A red light, respectively connected to the flat conductor and the conduction switch. When the burr is larger than 0.15 mm, it is in contact with the flat conductor. At this time, a conduction circuit is formed among the spring needle, the DC power supply, the conduction switch, the red light, the flat conductor, and the product under test;
[0021] A green light, respectively connected to the product under test and the conduction switch. When the burr is smaller than 0.15 mm, a conduction circuit is formed among the spring needle, the DC power supply, the conduction switch, the green light, and the product under test.
[0022] Furthermore, the shape of the flat conductor is the same as the shape of the substrate mounting surface of the product under test.
[0023] Furthermore, it also includes a base frame, and the power switch, the red light, the green light, and the insulating base plate are located on the base frame.
[0024] Even further, there is a receiving box under the base frame. The adjusting spring is located in the receiving box. The lower part of the loop PIN needle makes a lifting movement in the receiving box and is limited by the limiting platform at the top of the receiving box. The upper part of the loop PIN needle makes a lifting movement in the through hole of the base frame.
[0025] Further, a limiting groove is formed at the bottom of the insulating base plate, and the contact PIN needle moves up and down in the limiting groove, and the contact PIN needle penetrates through the insulating base plate and the flat conductor.
[0026] Further, one of the positioning pins protrudes from the insulating base plate, and the other two positioning pins protrude from the insulating base plate and the flat conductor. The positions of the three positioning pins correspond to the three positioning holes on the product to be measured.
[0027] As a further aspect, the spring needle is located on the insulating base plate and on one side of the flat conductor.
[0028] As a further aspect, the in-place detection mechanism further includes: an adjusting spring, which is located at the bottom of the loop PIN needle and is used to eliminate the longitudinal misalignment of the in-place detection mechanism with respect to the product to be measured.
[0029] The above technical solution adopted by the present utility model, compared with the prior art, has the following advantages: The device can accurately identify burrs larger than 0.15 mm and capture burrs that are difficult to distinguish by the naked eye. Through automatic detection, the detection efficiency is greatly improved, the detection time is shortened, the production cost is reduced, and human error is also reduced. The device can meet the surface burr detection requirements of aluminum die-cast products with different sizes, shapes and structures, reduce the risks of substrate open circuit and short circuit caused by excessive burrs, and improve the reliability and stability of the products. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 FIG. is a schematic diagram of the use of the device for detecting surface burrs of aluminum die-cast products;
[0031] Figure 2 FIG. is a schematic structural diagram of the device for detecting surface burrs of aluminum die-cast products;
[0032] Figure 3 FIG. is a cross-sectional view of the device for detecting surface burrs of aluminum die-cast products;
[0033] Figure 4 FIG. is a schematic structural diagram of the in-place detection mechanism;
[0034] Figure 5 FIG. is an enlarged view of the flat conductor and the part of the product to be measured;
[0035] Figure 6 FIG. is a side view of the device for detecting surface burrs of aluminum die-cast products;
[0036] Figure 7 FIG. is a schematic circuit connection diagram of the burr detection mechanism.
[0037] Wherein: 1. the product under test, 2. the flat conductor, 3. the positioning pin, 4. the insulating base plate, 5. the base frame, 6. the power switch, 7. the green light, 8. the red light, 9. the in-place detection mechanism, 9-1. the contact PIN needle, 9-2. the return spring, 9-3. the return PIN needle, 9-4. the adjusting spring, 9-5. the first lead wire, 9-6. the second lead wire, 10. the gap, 11. the burr, 12. the DC power supply, 13. the spring needle. Detailed implementation mode
[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.
[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.
[0042] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0043] Please refer to Figures 1-3 , this embodiment provides a device for detecting burrs on the surface of aluminum die-casting products, including:
[0044] A flat conductor, which is used to conduct the circuit when the burr on the product to be measured is greater than 0.15 mm; it should be noted that the shape of the flat conductor is the same as the shape of the substrate mounting surface of the product to be measured;
[0045] A positioning pin, which is used to support the product to be measured, so that there is a gap between the product to be measured and the flat conductor, preferably 0.14 ± 0.01 mm, as Figure 5 shown; one of the positioning pins protrudes from the insulating base plate, and the other two positioning pins protrude from the insulating base plate and the flat conductor. The positions of the three positioning pins correspond to the three positioning holes on the product to be measured; the positioning pin can determine the height (Z direction) and the up, down, left, and right positions (X direction and Y direction) of the product to be measured, and the height tolerance in the Z direction is controlled within 0.005 mm;
[0046] An insulating base plate, which is located under the flat conductor and is used to isolate the circuit from short-circuiting;
[0047] A burr detection mechanism, which is used to detect whether there is a burr greater than 0.15 mm on the product to be measured; as Figure 7 shown, specifically including:
[0048] A spring pin, which contacts the product to be measured; as Figure 6 shown, the spring pin is located on the insulating base plate and on one side of the flat conductor; its function is that the pin with a spring at one end contacts the product to be measured, and the other end is connected to the circuit to connect the product to be measured into the circuit;
[0049] A DC power supply, which is respectively connected to the spring pin and the conduction switch;
[0050] A red light, which is respectively connected to the flat conductor and the conduction switch. When the burr is greater than 0.15 mm, it contacts the flat conductor. At this time, a conduction circuit is formed among the spring pin, the DC power supply, the conduction switch, the red light, the flat conductor, and the product to be measured, and the red light lights up at this time; preferably, a buzzer can be connected in series in this circuit, and when the red light lights up, the buzzer gives an alarm;
[0051] The green light is respectively connected to the product under test and the conduction switch. When the burr is less than 0.15 mm, a conduction circuit is formed among the spring pin, the DC power supply, the conduction switch, the green light and the product under test, and the green light will light up at this time;
[0052] Among them, the power switch, the red light, the green light and the insulating base plate are located on the base frame;
[0053] The in-place detection mechanism, which is the conduction switch of the burr detection mechanism, is built into the flat conductor and the insulating base plate and is used to detect whether the product under test is placed in place; As Figure 4 shown, it specifically includes:
[0054] The contact PIN needle is used to detect whether the product under test is in place; The contact PIN needle moves up and down in the limit groove of the insulating base plate, and the contact PIN needle passes through the insulating base plate and the flat conductor; When the product under test descends in place, the compression amount can be designed to be about 0.5 mm.
[0055] The loop PIN needle, when it is connected to the contact PIN needle, the conduction switch is in the closed state, and when it is separated from the contact PIN needle, the conduction switch is in the open state;
[0056] The loop spring is sleeved on the loop PIN needle and is located at the bottom of the contact PIN needle; It is used to realize the connection and separation of the contact PIN needle and the loop PIN needle;
[0057] The adjusting spring is located at the bottom of the loop PIN needle and is used to eliminate the longitudinal misalignment of the in-place detection mechanism for the product under test; The adjusting spring is installed in the accommodating box under the base frame, the lower part of the loop PIN needle moves up and down in the accommodating box and is limited by the limiting platform at the top of the accommodating box, and the upper part of the loop PIN needle moves up and down in the through hole of the base frame.
[0058] In this embodiment, there are two purposes for setting the in-place detection mechanism. The first is to ensure that the product under test is placed in the accurate position. If the product is not completely in place, even if there is a burr, it may not be detected because the gap is increased. The second is to automatically turn on the detection function without the need for separate manual activation. The in-place detection mechanism is connected to the burr detection mechanism through the first lead and the second lead. When the contact PIN needle and the loop PIN needle are connected, a loop is generated to make the overall circuit connected. This method can ensure that the product under test falls completely in place. At the same time, a power switch, red and green lights, etc. are configured in the whole circuit. When the burr is greater than 0.15, the circuit of the red light is connected and the red light lights up for alarm. When the burr is less than 0.15, there will be no connection between the product and the flat conductor, and the green light will be lit at this time.
[0059] The effects of this embodiment are that the above device has the advantages of high precision, high efficiency, reduction of human error, strong adaptability, improvement of product quality and reduction of production costs. These advantages make the device have important application value in the production and quality control of aluminum die-casting products.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A device for detecting burrs on the surface of aluminum die-casting products, characterized in that: include: Flat conductor, used to conduct the circuit when the burr on the tested product is larger than 0.15mm; The positioning pin is used to support the product under test so that there is a gap between the product under test and the flat conductor; An insulating base plate, located below the flat conductor, is used to isolate the circuit; The burr detection mechanism is used to detect whether there are burrs larger than 0.15mm on the tested product; The in-place detection mechanism, as a conduction switch of the burr detection mechanism, is built into the flat conductor and the insulating base plate, and is used to detect whether the product under test is placed in place.
2. The device for detecting burrs on the surface of aluminum die-casting products according to claim 1, characterized in that: The in-place detection mechanism comprises: Contact PIN needle, used to detect whether the product under test is in place; The loop PIN pin, when connected to the contact PIN pin, the conduction switch is in a closed state, and when separated from the contact PIN pin, the conduction switch is in an open state; The loop spring is sleeved on the loop PIN needle and located at the bottom of the contact PIN needle; it is used to connect and separate the contact PIN needle and the loop PIN needle.
3. The device for detecting burrs on the surface of aluminum die-casting products according to claim 2, characterized in that: The burr detection mechanism comprises: Spring-loaded pins, in contact with the product being tested; A DC power supply is connected to the spring pin and the conduction switch respectively; The red light is connected to the flat conductor and the conduction switch respectively. When the burr is larger than 0.15mm, it contacts the flat conductor. At this time, a conduction circuit is formed among the spring pin, DC power supply, conduction switch, red light, flat conductor and the product under test; The green light is connected to the product under test and the conduction switch respectively. When the burr is less than 0.15mm, a conduction circuit is formed among the spring needle, DC power supply, conduction switch, green light and the product under test.
4. The device for detecting burrs on the surface of aluminum die-casting products according to claim 1, characterized in that: The shape of the flat conductor is the same as the shape of the substrate mounting surface of the product under test.
5. The device for detecting burrs on the surface of aluminum die-casting products according to claim 3, characterized in that: The utility model also comprises a base frame, on which a power switch, a red light, a green light and an insulating bottom plate are located.
6. The device for detecting burrs on the surface of aluminum die-casting products according to claim 5, characterized in that: A accommodating box is provided under the base frame, and the adjusting spring is located in the accommodating box. The lower part of the loop PIN needle performs lifting movement in the accommodating box and is limited by the limiting platform on the top of the accommodating box, and the upper part of the loop PIN needle performs lifting movement in the through hole of the base frame.
7. The device for detecting burrs on the surface of aluminum die-casting products according to claim 6, characterized in that: A limiting groove is provided at the bottom of the insulating bottom plate, and the contact PIN needle performs lifting movement in the limiting groove, and the contact PIN needle passes through the insulating bottom plate and the flat conductor.
8. The device for detecting burrs on the surface of aluminum die-casting products according to claim 1, characterized in that: One of the positioning pins extends from the insulating base plate, and the other two positioning pins extend from the insulating base plate and the flat conductor. The positions of the three positioning pins correspond to the three positioning holes on the product under test.
9. The device for detecting burrs on the surface of aluminum die-casting products according to claim 3, characterized in that: The spring pins are located on the insulating base plate and on one side of the flat conductor.
10. The device for detecting burrs on the surface of aluminum die-casting products according to claim 2, characterized in that: The in-place detection mechanism also includes: an adjustment spring located at the bottom of the loop PIN needle, which is used to eliminate the longitudinal mispositioning of the detected product by the in-place detection mechanism.